Smoke-consumer.



A. HABIG.

SMOKE CONSUMER.

APPLICATION FILED 0CT.26.19I5.

Patented Sept. 10, 1918.

um. h a 0 w 3 THUR HABIG, 0F MONT 1 ennnnc', camera.

SMOKE-CONSUMER.

Specification of Letters Patent. Patgntgqflfiepfl IMP, 191%.

Application filed October 28, 1915. Serial lilo. 58,007.

To all whom it may com-em:

Be it known that I, ARTHUR Hears, a subject of the King of GreatBritain, and resident of 905 De Montigny St. East, in the city ofMontreal Province of Quebec, in the Dominion of anada, engineer, haveinvented certain new and useful Improvements in Smoke-Consumers; and Ido hereby declare that the following is a full, clear, and exactdescription ofthe same.

The invention relates to improvements in smoke consumers as described inthe present. specification and shown in the accompanying drawings thatform part of the same. I

The invention consists essentially of the novel construction andarrangement of parts, whereby the unconsumed gases are drawn from theflue into the firebox through a chamber in the door.

The objects of the invention are to economize in the consumption offuel, to eliminate. the smoke nuisance particularly in .mg

great cities and generally to provide a simple economical andserviceable smoke consumer.

In the drawings, Figure 1 is a vertical sectional view of the furnacewith the fire box door closed.

Fig. 2 is a front elevation of the furnace.

I Fig. 3 is a horizontal sectional view through the door. I

Fig. 4 is a vertical section of the door and adjoining wall.

Like numerals of reference indicate corresponding parts in each figure.

Referring to the drawings, it will be seen that in the furnacestructure, there are twin furnaces, in eachof which the door 1 isconstructed with a pipe slot 2 in the upper side thereof, immediatelybeneath which a box 3 is supported fitting aroundthe edges of said slotand open at the end, saidbox being in the center of the inside of thedoor, having a central outlet hole 4 and secured to the door by the backplate 5, the latter being bolted to saiddoor.

The fire box of each furnace is fed through a door opening 7 closed bythe door 1 and emits smoke or unconsumed gases into the flue 8. Thesegases are drawn into the return pipe 9 which terminatesat the rear endin the bell mouth 10 and branches near the front of the structure intotwo pipes 9 rectangular in cross section extending down the front wallof the furnace on their narnow sides and twisted above the line of thedoor openings and projecting ontheir flat broad sides to said door 0enings; A partial vacuum is created in t e pipe 9 by the steam jet 11spouting in the direction of the return flow of gases and situatedseveral,

feet from the flue 8. The onflow of'the return gases is further assuredby the steam jets at ends of the pipes 12 which spout into the fireboxes just above the door openings and draw, the gases inwardly from theboxes 3, which at their upper ends close over the delivery ends of thepipes 9 The steam also materially aids in promoting the combustion ofthe fuel in each fire box as well as the unconsumed gases aforesaid andtherefore these jets of steam serve two puroses, that is to say two jetsof steam spoutinto the fire boxes spray over the fuel and addcombustible gases to aid thesaid fuel to a state of incandescence aswell as leaving behind the spoutmgs a partial vacuum, for drawing t esmoke or unconsumed gases emitted from the outlet hole in said doorboxes. It has been explained how the smoke is first drawn from'the flueand it will now be seen that its flow is carried on by ,an entrainingaction directl a fire box and this is particularly ac1l1- tated bythechamber secured on the inside of each door which has its outlet justbelow each pipe 12. 7

It must be understood that many changes may he made in the constructionso long as such diflerences come. within the scope of the claim fornovelty following.

What I claim is In a smoke consumer, the combination with the furnacestructure including a pair of boilers and fire boxes and flue, of a pipeextending forwardly from the flue between the boilers and terminating insaid flue in a flaring end in the path of the unconsumed gases and atits forward end spreading into two distinct pipes, the latter beingsecured on the front wall of the furnace in the center thereof and ofcomparatively flat formation and at points higher than the fire boxdoors twisted and laid fiat on the furnace Wall and extending laterallyand Signed at Montreal, Canada, this 14th downwardly to the fire boxdoors, dqors to day of June, 1915. said fire boxes, an inner platespaced apart from the front Wall of each door, each of 5 said plateshaving a central opening, and Witnesses:

steam jets situated in the return path of the M. A. GOULD, uneonsumedgases. J. Bonn.

ARTHUR HABIG,

